New _m() gettext wrapper with smart detection of plugin domains. Plugin base class registers your gettext files if present at initialization.

update_pot.sh replaced with update_po_templates.php which can do core, plugins, or all (default).
Top-level Makefile added to build .mo files for plugins as well as core.

As described on list:
http://lists.status.net/pipermail/statusnet-dev/2009-December/002869.html

scripts/update_po_templates.php

@@ -0,0 +1,211 @@
+#!/usr/bin/env php
+<?php
+/*
+ * StatusNet - the distributed open-source microblogging tool
+ * Copyright (C) 2008, 2009, StatusNet, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+// Abort if called from a web server
+if (isset($_SERVER) && array_key_exists('REQUEST_METHOD', $_SERVER)) {
+    print "This script must be run from the command line\n";
+    exit();
+}
+
+define('INSTALLDIR', realpath(dirname(__FILE__) . '/..'));
+
+function update_core($dir, $domain)
+{
+    $old = getcwd();
+    chdir($dir);
+    passthru(<<<END
+xgettext \
+    --from-code=UTF-8 \
+    --default-domain=$domain \
+    --output=locale/$domain.po \
+    --language=PHP \
+    --keyword="_m:1" \
+    --keyword="pgettext:1c,2" \
+    --keyword="npgettext:1c,2,3" \
+    actions/*.php \
+    classes/*.php \
+    lib/*.php \
+    scripts/*.php
+END
+);
+    chdir($old);
+}
+
+function do_update_plugin($dir, $domain)
+{
+    $old = getcwd();
+    chdir($dir);
+    if (!file_exists('locale')) {
+        mkdir('locale');
+    }
+    $files = get_plugin_sources(".");
+    $cmd = <<<END
+xgettext \
+    --from-code=UTF-8 \
+    --default-domain=$domain \
+    --output=locale/$domain.po \
+    --language=PHP \
+    --keyword='' \
+    --keyword="_m:1" \
+
+END;
+    foreach ($files as $file) {
+      $cmd .= ' ' . escapeshellarg($file);
+    }
+    passthru($cmd);
+    chdir($old);
+}
+
+function do_translatewiki_plugin($basedir, $plugin)
+{
+    $yamldir = "$basedir/locale/TranslateWiki";
+    if (!file_exists($yamldir)) {
+        mkdir($yamldir);
+    }
+    $outfile = "$yamldir/StatusNet-{$plugin}.yml";
+    $data = <<<END
+---
+BASIC:
+  id: out-statusnet-{$plugin}
+  label: StatusNet - {$plugin}
+  description: "{{int:bw-desc-statusnet-plugin-{$plugin}}}"
+  namespace: NS_STATUSNET
+  display: out/statusnet/{$plugin}
+  class: GettextMessageGroup
+
+FILES:
+  class: GettextFFS
+  sourcePattern: %GROUPROOT%/plugins/{$plugin}/locale/%CODE%/LC_MESSAGES/{$plugin}.po
+  targetPattern: {$plugin}.po
+  codeMap:
+    en-gb: en_GB
+    no: nb
+    pt-br: pt_BR
+    zh-hans: zh_CN
+    zh-hant: zh_TW
+
+MANGLER
+  class: StringMatcher
+  prefix: {$plugin}-
+  patterns:
+    - "*"
+
+END;
+    file_put_contents($outfile, $data);
+}
+
+function get_plugins($dir)
+{
+    $plugins = array();
+    $dirs = new DirectoryIterator("$dir/plugins");
+    foreach ($dirs as $item) {
+        if ($item->isDir() && !$item->isDot()) {
+            $name = $item->getBasename();
+            if (file_exists("$dir/plugins/$name/{$name}Plugin.php")) {
+                $plugins[] = $name;
+            }
+        }
+    }
+    return $plugins;
+}
+
+function get_plugin_sources($dir)
+{
+    $files = array();
+
+    $dirs = new RecursiveDirectoryIterator($dir);
+    $iter = new RecursiveIteratorIterator($dirs);
+    foreach ($iter as $pathname => $item) {
+        if ($item->isFile() && preg_match('/\.php$/', $item->getBaseName())) {
+            $files[] = $pathname;
+        }
+    }
+    return $files;
+}
+
+function plugin_using_gettext($dir)
+{
+    $files = get_plugin_sources($dir);
+    foreach ($files as $pathname) {
+        // Check if the file is using our _m gettext wrapper
+        $code = file_get_contents($pathname);
+        if (preg_match('/\b_m\(/', $code)) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+function update_plugin($basedir, $name)
+{
+    $dir = "$basedir/plugins/$name";
+    if (plugin_using_gettext($dir)) {
+        do_update_plugin($dir, $name);
+        do_translatewiki_plugin($basedir, $name);
+        return true;
+    } else {
+        return false;
+    }
+}
+
+$args = $_SERVER['argv'];
+array_shift($args);
+
+$all = false;
+$core = false;
+$allplugins = false;
+$plugins = array();
+if (count($args) == 0) {
+    $all = true;
+}
+foreach ($args as $arg) {
+    if ($arg == '--all') {
+        $all = true;
+    } elseif ($arg == "--core") {
+        $core = true;
+    } elseif ($arg == "--plugins") {
+        $allplugins = true;
+    } elseif (substr($arg, 0, 9) == "--plugin=") {
+        $plugins[] = substr($arg, 9);
+    }
+}
+
+
+
+if ($all || $core) {
+    echo "core...";
+    update_core(INSTALLDIR, 'statusnet');
+    echo " ok\n";
+}
+if ($all || $allplugins) {
+    $plugins = get_plugins(INSTALLDIR);
+}
+if ($plugins) {
+    foreach ($plugins as $plugin) {
+        echo "$plugin...";
+        if (update_plugin(INSTALLDIR, $plugin)) {
+            echo " ok\n";
+        } else {
+            echo " not localized\n";
+        }
+    }
+}
+

scripts/update_pot.sh

@@ -1,13 +0,0 @@
-cd `dirname $0`
-cd ..
-xgettext \
-    --from-code=UTF-8 \
-    --default-domain=statusnet \
-    --output=locale/statusnet.po \
-    --language=PHP \
-    --keyword="pgettext:1c,2" \
-    --keyword="npgettext:1c,2,3" \
-    actions/*.php \
-    classes/*.php \
-    lib/*.php \
-    scripts/*.php